Gas Cap Differences?

[USAF Sarge]

Have a 2006 Expo (The Beast), we're getting a check engine light with the P0456 code "Evaporative emission control system leak (small)."

So we figured we'd change out the gas cap first, then work from there. I have found 4 different Motorcraft non-locking, tethered gas caps on partsgeek. Is there a difference? Which one do I go with?

Confused as heck here.


Mike
TSgt, USAF Retired
Jan 86 - Sept 08
Aircrew Life Support
"Your Life Is Our Business"
(122X0, 1T1X1, 1P0X1)

 

[Hamfisted]

You can find it pretty easy on Amazon. Ford 8C3Z-9030-A Fuel Cap on Amazon





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[krakoosh]

That may solve it but l think it's probably the fuel tank. I've tried everything but that. Just clear the code and drive on.